三重过滤，有效过滤PM2.5 微尘有害物质。
第一重过滤叫真实。你能百分之百确定你要讲的事情都是真的吗？
The first filter is TRUTH. Have you made absolutely sure that what you are about to tell me is true?
Vimscript系列的第四篇将会介绍这一重要的数据结构，并解释其复制、过滤、扩展和整理的多项功能。
This fourth article in a series on Vimscript introduces this important data structure and explains its various functions for copying, filtering, extending, and pruning.
结果表明，开关膜的接枝率对膜的过滤通量、温度感应开关系数和膜孔径感温变化倍数都有十分重要的影响。
The results showed that the grafting yield heavily affected water flux, responsiveness coefficient and thermo-responsive gating factor of membrane pore size.
用已烘干至恒重的G4玻璃坩埚过滤。
Filter the mixture with a G4 glass crucible pre-dried to a constant weight.
在结构上它既具有旋风式重滤除尘器的特征，又具有滤网式过滤除尘的特征，还设有清扫除尘器的除尘喷嘴和吹灰喷嘴。
In this structure, both it is whirlwind filtering duster and strainer filtering dust. The dusting nozzle of cleaning duster and ash blowing nozzle are mounted into the separator.
这个试验工作表明可以通过在进行粉碎和过滤之后对矿石进行再过滤，重阶选矿或者初步汰选的这样一种预浓缩阶段的实现可能性。
The test work indicated the probability of a pre-concentration stage using a screening, dense media separation or coarse-ore jigging after crushing and screening.
这个试验工作表明可以通过在进行粉碎和过滤之后对矿石进行再过滤，重阶选矿或者初步汰选的这样一种预浓缩阶段的实现可能性。
The test work indicated the probability of a pre-concentration stage using a screening, dense media separation or coarse-ore jigging after crushing and screening.
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